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O. H. BUSH AND CHS. H. BUSH, OF FALL RIVER, MASSACHUSETTS.

Speccaton of Letters Patent No, 3,002, dated March 30, 1843.

To all whom it may concern.'

Be it known that we, OLIVER H. BUSH and CHARLES H. BUSH, of Fall River,in the county of Bristol and Commonwealth of Massachusetts, brassfounders, have invented a new and useful Improvement in the Liquor-Gate,and that the following is a full and exact description of theconstruction and operation of the same as invented or improved by us.

This liquor gate consists of four generalY parts, to wit: The body` thegate plate, the cap, and the spiral spring. The three first parts aremade of lead, or other metal that can be conveniently melted, and castin sand; and the last part is made of iron wire. The body may bedescribed as combining four parts, to wit: The tub-e A, the head plateB, the bolt C, and the bearer D. The tube A is four inches long, themetal being one fourth of an inch thick at the head slightly tapering tothe end that is to be in serted in the wood of the hogshead or othervessel, on the outer surface of which end, to the extent of two inches,iscut a screw thread, for the purpose of screwing and fastening it inthe wood. The caliber of the tube is one inch and one fourth of an inch.The head plate B, is one fourth of an inch thick` in the form of aquadrant of three inches radii, and so cast on to the discharging end ofthe tube, there being bracket formed pieces connecting it with the tubeon its under side, as at G, Figure 2 to render it strong and rm; havinga knob H cast on the back of the plate near the center angle, projectinghalf an inch. Opposite to the knob on the face of the head plate is around cavity c', one sixteenth of an inch deep and three fourths of aninch in diameter to receive a projection on the gate plate E; threefourths of an inch from each of the angles, on the circular extremity ofthis head plate is a stop shoulder a, a, made to limit the movement ofthe gate plate and at the edge, on the face of this plate, is raised aninclined plane z', one eighth of an inch wide, and one thirty secondpart of an inch in its highest elevation at z" and passing off tonothing at about the middle of the curve. This inclined plane is to aidin securing a proper direction in the circular motion of the gate plate.The bolt C, is made of iron, one fourth of an inch in diameter and twoinches in height,

and passes through the head plate in the center of the cavity beforementioned, and the ends soldered fast in the knob opposite. 0n this boltis fastened by a washer and pin, the gate plate and cap; and on whichthey move The bearer D, is made of soft leather, as c alfskin, and isinserted in` a round cavity made as near to the inner surface of thedischarging end of Vthe tube as is practicable, one sixteenth of an inchdeep and one fourth of an inch wide; and when the leather is inserted,which makes the bearer` it rises one thirty second part of an inch abovethe surface of the head plate. This lbearerris for the purpose of makingthe gate tight when all the parts are together by the pressure of thespiral spring. Y

The gate plate E, is three sixteenths of an inch thick four inches inlength 0f un-. equal width, the widest part being one inch and threefourths of an inch. One end of it constitutes a handle to move it beinghalf round and excavated on each side as at b. At the other ends, on theface matching the head plate is cast a projection c', to move in thecavity before mentioned in the head plate; and through the center ofthis projection passes the bolt C before described. Opf posite to thisprojection, on the neck of the handle is cast a guard d, one fourth ofan inch wide and one eighth of an inch high, which strikes the stopshoulder a, 0;, before mentioned and limits both ways the movement Vofthe gate plate. On the opposite surface of this gate plate is a cavityc, with a circular projection g, g, with an opening sol to receive theneck of the cap F. This cavF Y fourth of an inch deep, and three fourthsof an inch in diameter, and is made to receive the spiral spring f andthe head ofthe cap. The cap D, is two inches and a halfv inV length,having a head F` neck F and hub F. The head is nine sixteenths of aninch deep, and its circumference, fitted to the cavity of the gateplate, as before described; and in this head is a cavity which receives'the spiral spring f and is five eighths of an inch in diameter, andhalf an inch deep, to receive and press the spiral spring upon the gateplate. The hub F of this cap is three fourths of an inch deep, and thesurface bearing` on the gate plate, seven eighths of an inch indiameter, with a hole passing through it, fitted to the bolt C beforedescribed. The spiral spring is not seen When all the parts of themachine are put together, being covered by the head of the cap. The coilof this spring is one half of an inch in diameter, and beforecompression, ive eighths of an inch in height. All the parts being thusmade are joined together on the bolt on which, the gate plate and capand spring move together, to the extent necessaryq in a circular motion,being kept in their place, and receiving the required pressure on thespring by a pin passing through the end of the iron bolt.

`We do not intend to limit ourselves to the dimensions or" the parts asherein given, nor do We claim as of our invention the employment of asliding plate to close the tube, as

The superior advantages of this liquor 25VV i gate, over any otherheretoforeused consists 1n its being more compact, less expensive, andmore durable. Y Y

OLIVER H. BUSH. CHARLES H, BUSH.

Signed in presence of us:

CYRUs ALBEN, BENJA. F. WINsLoW.

